4.0 TDI V8 SQ7
Audi · 4.0 TDI V8 (CZAC/DCZF) SQ7/SQ8
2016–present
"SQ7/SQ8. Electric compressor + twin-turbo. Most complex diesel ever made. 48V system. EGR cooler. DPF/SCR. Phenomenal performance but any failure = very expensive."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 1
EGR cooler failure
▸Coolant loss, smoke
EGR cooler crack = coolant enters engine.
EGR cooler — €800-2,500. ΣΟΒΑΡΟ.
Models with 4.0 TDI V8 SQ7 1
Other Audi Engines
Tuning Potential
480hp Stage 1
Frequently Asked Questions
Is the Audi 4.0 TDI V8 SQ7 reliable?
The Audi 4.0 TDI V8 SQ7 scores 65/100 with a verdict of CAUTION. It has 1 documented issues with total repair costs between €800 and €2,500.
What are the common problems with the 4.0 TDI V8 SQ7?
The most common issues are:
- EGR cooler failure — high, repair cost €800–€2,500, 60,000 km–120,000 km
What cars use the Audi 4.0 TDI V8 SQ7?
The 4.0 TDI V8 SQ7 is found in:
- Q7 (2016–2020)
How much does it cost to repair the 4.0 TDI V8 SQ7?
Total potential repair costs for all 1 known issues range from €800 to €2,500. The most expensive issue is typically .
What years was the 4.0 TDI V8 SQ7 produced?
The Audi 4.0 TDI V8 SQ7 was produced from 2016 to present. It is a 3956cc V8 diesel engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.